Primordial pairing and binding of superheavy charge particles in the early Universe

Abstract

Primordial superheavy particles, considered as the source of Ultra High Energy Cosmic Rays (UHECR) and produced in local processes in the early Universe, should bear some strictly or approximately conserved charge to be sufficiently stable to survive to the present time. Charge conservation makes them to be produced in pairs, and the estimated separation of particle and antiparticle in such pair is shown to be in some cases much smaller than the average separation determined by the averaged number density of considered particles. If the new U(1) charge is the source of a long range field similar to electromagnetic field, the particle and antiparticle, possessing that charge, can form primordial bound system with annihilation timescale, which can satisfy the conditions, assumed for this type of UHECR sources. These conditions severely constrain the possible properties of considered particles.

Latex, 4 pages. The final version to appear in Pis'ma ZhETF (the conditions for the primordial binding are specified, some refs added)

References in corpus (1)

• The high energy cosmic ray spectrum from relic particle decay

Cited by in corpus (9)

• Strong Interactive Massive Particles from a Strong Coupled Theory
• Small-scale clumps of dark matter
• Primordial bound systems of superheavy particles as the source of ultra-high energy cosmic rays
• Monopole annihilation in cosmic necklaces
• A testable scenario of WIMPZILLA with Dark Radiation
• Active Galactic Nuclei and Transformation of Dark Matter into Visible Matter
• Magnetic Monopoles and Dark Matter
• Gravitational radiation as the bremsstrahlung of superheavy particles in the early Universe
• On the abundance of primordial bound states of superheavy magnetic monopoles